Silent and Failsafe Overflow System

anyone????i see your in the forum bean.lol....congrats on the nomination i voted for ya and made it a even 600posts lol.......im just waiting for a reply so i can go get the rite stuff my whole build is on hold till i get a answer......:(
 
<a href=showthread.php?s=&postid=15078648#post15078648 target=_blank>Originally posted</a> by reefrubble
BeanAnimal, The standpipes are not the problem . The water falling into the overflow box is the problem . When I unplug the OM four way , at the right time , the fluctuations stop . I don't have any power heads in my tank , the only flow I have is from the four way . I don't have the Bucks for a Tunze PH set up .
Click to expand...

Okay... so lets try the split vinyl tubing to see of adding a curved profile helps stop the splashing. In the meantime, can you post a few photos of the overflow box in action?
 
<a href=showthread.php?s=&postid=15078871#post15078871 target=_blank>Originally posted</a> by troylee
okay bean im a little confused here......im putting this overflow on my new tank im building in a thread somewhere around here lol......anyways from your web page and the exploded view of the stand pipe you show a 1.25 to 1 slip street el. going into the 1" bulkhead now i went and got all the plumbing aready and was playing with it and the street el. does not just slip into the bulkhead like your diagram shows do i put a piece of 1"pvc in there for the connection??? or get a 3/4" to 1" street el????? or get a bigger bulkhead????lol... im confused......tia. for any help.....also what width and depth overflow box is recommemnded for this set up???? i was planning on running it the entire 8ft of the tank if possible for best surface skimming...
Click to expand...

The street el is 1" male x 1.25 female. It should plug right into the 1" bulkhead... sounds like you got a regular reducing elbow and not the street elbow. A "street elbow" is a male to female part :) But yes, you can couple the elboe you have like any other female to female fitting.

8' weir should be fine... what size return pump?
 
for a return pump...... im still figuring that out.....i might run a big laguna or a dart not sure yet i wanna have around 2000gph of flow through the sump.....lol....thanks for the input......now i got to get this thing going soon hopefully.....:)i will post some pics when i get it done......do you think a internal wier is better than a external for surface skimming??? i would think so but i can honestly say it's just a guess......i didnt want anything in the tank but plans are changing so im still drawing stuff up and thinking about it......i would rather have better performance than looks at this stage there is always a way to hide something..:)
 
i meant the box lol......to me it seems the internal box getting the layer off the complete top of the tank would be better than a ext. with a couple bulk heads feeding it....skimming wise anyways....ya no????lol..
 
If you use an external box with a couple of bulkheads holes feeding it, then you would want an internal box as well, just very narrow (maybe an 1" or so) to act as a weir.
 
Hey Bean.....

Have you found and better plastic valve for the air inlet in the standpipe? The plastic $1.49 type work, but seem to plug every 2-3 days with either dust from the surrounding air and/or salt creep internally. It is kind of annoying having to have some in rotation soaking while others are installed. The valves from USPlastics were great if you like hearing the constant gurgle from the pipes. The plastic airline valves have good control, but clog even with a DIY filter with poly batting.

Just wondering what your experience and any others' out there...

Definite +1,000,000 on an external overflow next tank. Internal takes up too much space.
 
okay call me what ever you want most likely a pain but anyways i cant find a 1.25 female to 1" male street el any where......will a 1" female to 1" male street el work?????or is that what you talking about? lol.......since a 1.25 coupler fits the female side....
 
"can you post a few photos of the overflow box in action?"

Sorry for the bad pics .
 
<a href=showthread.php?s=&postid=15079982#post15079982 target=_blank>Originally posted</a> by DeathWish302
Hey Bean.....

Have you found and better plastic valve for the air inlet in the standpipe? The plastic $1.49 type work, but seem to plug every 2-3 days with either dust from the surrounding air and/or salt creep internally. It is kind of annoying having to have some in rotation soaking while others are installed. The valves from USPlastics were great if you like hearing the constant gurgle from the pipes. The plastic airline valves have good control, but clog even with a DIY filter with poly batting.

Just wondering what your experience and any others' out there...

Definite +1,000,000 on an external overflow next tank. Internal takes up too much space.
Click to expand...

I have never had the air inlet clog, or even partially clog. I use a standard John Guest (well actually Watts from Lowes) brand valve.
 
<a href=showthread.php?s=&postid=15080252#post15080252 target=_blank>Originally posted</a> by reefrubble
overflowbox002.jpg~original
Click to expand...
That is a fairly high flow for such a narrow overflow. You have a full fledged waterfall going. You have a few options.

1) Section a hunk of solid PVC or similar material to saddle the top of the weir... say maybe 1" or larger in diameter. This will change the profile and allow the water to cascade into the box.

2) Use a piece of glass or acrylic attached to the back of the box to create a slope (think spillway) that will allow the water to slide in instead of crashing in.

3) Raise the level of the open channel to raise the level of the water in the box. The shorter the fall, the less noise it will make.

4) Use a smaller return pump and put the big pump and OM on a closed loop.

Think about the options and let me know if you feel you can tackle any of them or a variation of one of them.
 
Last edited by a moderator:
Bean I started working on my setup and noticed that the over flow box is too high so I had to turn the 90 degree elbows on their side. Do you think that will be an issue?

DSC00787-1.jpg~original
 
Last edited by a moderator:
I am not sure I see what is going on (refelections and perspective)

Can you explain "too high"? Is the box not deep enough?

How long is the overflow and what size return pump? What are the dimensions of the teeth? How far are the bottom of the teeth from the floor of the box?
 
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